Symbols are
a **concise
way of giving
lengthy
instructions**
related to
numbers and
logic.

Symbols are
a communication
tool. Symbols
are used to
eliminate the
need to write
long, plain
language
instructions to
describe
calculations
and other
processes.

For example, a
single symbol
stands for the
entire process
for addition.
The familiar
plus sign
eliminates the
need for a long
written
explanation of
what addition
means and how
to accomplish
it.

The same
symbols are
used worldwide
. . .

The *symbols*
used in
mathematics are
*universal*.

The same math
symbols are
used throughout
the civilized
world. In most
cases each
symbol gives
the same clear,
precise meaning
to every
reader,
regardless of
the language
they speak.

The most
valuable,
**most
frequently used
Symbols** in
mathematics . .
.

The most
important, most
frequently used
*
Operations
(computation)*
symbols are
listed
below.

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Multiplication
Sign,
Cross
Product of
two
vectors

Example 1:
,
interchangeably
with the
raised dot
or
Star
)

21
"multiplied"
by 3 is 63

Example 2:
,
Cross
Product of
Two
Vectors

The cross
product of two
vectors is a
new vector.

,
where D
and E are
the
absolute
values of
the
vectors D
& E,
and
is
the unit
vector
perpendicular
to the
plane
formed by
the
vectors D
& E
using the
right hand
rule.